Deputies in San Joaquin County shot a dog to death Friday after it attacked some chickens -- but they're not sure if the animal is part of the pack of wild dogs officials have been tracking, responsible for nearly 200 recent livestock deaths.

Deputies there have been on the hunt for a pack of wild dogs, likely 10 of them, Garcia has said. Armed with traps and tranquilizers, officials searched for the animals several days this week.

The hunt has continued on four-wheelers, through orchards and other places the dogs are thought to be resting.

The 10 dogs are pit bull, German shepherd and coyote mixes, Garcia added.

Another canine that came into contact with deputies was shot dead earlier in the week.

One San Joaquin County man lost about 160 goats to the wild dogs. Eighty were attacked and killed by the pack, and the rest of the goats had to be euthanized. He said the financial loss is about $35,000.